Key statistics
Satellite OBJECT D at a glance.
Uptime
30
Days in orbit
Revolutions
≈ 14.9
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
97.7
Latest
Satellite identification and parameters
Extended collection of information and parameters for OBJECT D.
Object identification
Identified? True
Debris? False
Object name: OBJECT D
International designator: 2025-274D
Object number (NORAD): 66653
Object ID (CCSDS): 66653
Country: SOUTH KOREA (SKOR)
Current information (Y/N): Y
Orbital parameters
Period: 96.517 minutes
Inclination: 97.7405 deg
SMA: 6969.939 km
Apoapsis: 600.079 km
Periapsis: 583.53 km
RAAN: 286.8526 deg
Eccentricy: 0.00118716
Argument of periapsis: 204.7959 deg
Mean anomaly: 155.2691 deg
Mean motion: 14.9196714 rev/day
Mean motion (dot): 0.00002556 rev/day2
B* drag term: 0.00025761605 1/REarth
Two-line elements (TLE)
Creation date: Dec. 26, 2025, 3:10 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 25, 2025, 9:29 p.m. UTC
TLE line 0: 0 OBJECT D
TLE line 1: 1 66653U 25274D 25359.89541787 .00002556 00000-0 25762-3 0 9992
TLE line 2: 2 66653 97.7405 286.8526 0011872 204.7959 155.2691 14.91967140 4366
Live tracking on map
Real-time ground track for satellite OBJECT D.
In-orbit conjunctions
There are no conjunctions computed for OBJECT D, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
CAS500-3 is a South Korean Earth observation satellites to be used by the Ministry of Science and ICT for space technology verification and space science research.
OBJECT D was lifted into orbit during the mission ‘Nuri | CAS500-3’, on board a Nuri space rocket.
The launch took place on Nov. 26, 2025, 4:13 p.m. from LC-2.
For more information about the launch, click the button.
Nuri | CAS500-3
Agency: N/A
Status: Launch Successful
Launch date: Nov. 26, 2025, 4:13 p.m. UTC
Rocket: Nuri
Launch pad: LC-2
Location: Naro Space Center, South Korea
...
Latest news about this satellite
Alen Space delivers ETRISat CubeSat to ETRI for upcoming launch on Korean Nuri rocket
Tokyo, Japan (SPX) Nov 26, 2025 Alen Space has completed and delivered ETRISat, a 6U CubeSat manufactured at its facility in Nigran, Spain, for the Electronics and Telecommunications Research Institute (ETRI) in South Korea. The spacecraft is now in ...
South Korean team prepares BioCabinet payload for space biology research on Nuri rocket mission
Tokyo, Japan (SPX) Nov 26, 2025 Chan Hum Park and his research team from Hallym University Chuncheon Sacred Heart Hospital are sending their BioCabinet payload into orbit aboard the fourth Nuri rocket flight on November 27, launching alongside the Ne...
South Korea advances Nuri rocket program with fourth orbital launch
Tokyo, Japan (SPX) Nov 28, 2025 South Korea has completed the fourth mission of its domestically built Nuri launch vehicle, placing a primary satellite and a group of smaller payloads into orbit from the coastal village of Goheung in the south of the...
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